IBM SSEC reprints & notes for article by Charles Bashe
A Large-Scale, General Purpose Electronic Digital Calculator -- The SSEC by McPherson, et al.
Automatic Computing Machinery, Other Aids to Computation, SSEC [photocopy, dbl up]
Early Electronic Computer Developments at IBM by Byron E. Phelps
RC 9225 (#40521) 1/22/82 The IBM Selective Sequence Electronic Calculator
SPEC SHEET IBM Selective Sequence Electronic Calculator (SSEC)
The IBM Pluggable Sequence Relay Calculator [photocopy, dbl up]
The SSEC in Historical Perspective by Charles J. Bashe, Annals of ...